Interaction-Aware Prompting for Zero-Shot Spatio-Temporal Action Detection

• URL: http://arxiv.org/abs/2304.04688v4
• Date: Wed, 20 Sep 2023 14:14:16 GMT
• Title: Interaction-Aware Prompting for Zero-Shot Spatio-Temporal Action Detection
• Authors: Wei-Jhe Huang, Jheng-Hsien Yeh, Min-Hung Chen, Gueter Josmy Faure, Shang-Hong Lai
• Abstract summary: spatial-temporal action detection is to determine the time and place where each person's action occurs in a video. Most of the existing methods adopt fully-supervised learning, which requires a large amount of training data. We propose to utilize a pre-trained visual-language model to extract the representative image and text features.
• Score: 12.109835641702784
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The goal of spatial-temporal action detection is to determine the time and place where each person's action occurs in a video and classify the corresponding action category. Most of the existing methods adopt fully-supervised learning, which requires a large amount of training data, making it very difficult to achieve zero-shot learning. In this paper, we propose to utilize a pre-trained visual-language model to extract the representative image and text features, and model the relationship between these features through different interaction modules to obtain the interaction feature. In addition, we use this feature to prompt each label to obtain more appropriate text features. Finally, we calculate the similarity between the interaction feature and the text feature for each label to determine the action category. Our experiments on J-HMDB and UCF101-24 datasets demonstrate that the proposed interaction module and prompting make the visual-language features better aligned, thus achieving excellent accuracy for zero-shot spatio-temporal action detection. The code will be available at https://github.com/webber2933/iCLIP.

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